Koyo Seiko (Osaka, Japan) was established as a private company by Zenichiro Ikeda. They initially sold imported bearings but by 1935 had begun production of Koyo branded bearings under the name Koyo Seiko Co., Ltd. Koyo merged with Toyoda Machinery Jan. 1, 2006, to become

JTEKT JTEKT Corporation is a Japanese corporation created in January 2006 upon the merger of two companies: Koyo Seiko Co. and ''Toyoda Machine Works''. Toyoda Machine Works, Machine tool sales for North, Central and South America, aftermarket suppor ...

, a leading manufacturer of

ball A ball is a round object (usually spherical, but can sometimes be ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used f ...

and

roller bearings In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing (mechanical), bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, Groove (engineering), g ...

, automotive steering systems, drive line products and machine tools.

Toyota Motor Corp. is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 m ...

had been the major investor in each company and is the major stockholder in JTEKT with about 24 percent. Koyo Seiko has various bearing manufacturing facilities all around the world. There are manufacturing sites in Japan, UK, Europe, China and India. Koyo is a member of World Bearing Association (WBA).

External links

Company history on JTEKT website
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